Better Nature is resource pack for itself. Better Leaves, Overlay Textures and Default Feel are more detailed resource packs that you can use separetly or combined. My sugestion is to combine them for the best looks.

Hello, could I leave it configured if I put the new texture of the minecraft java edition with this more beautiful one? So that when I use the 2 together it looks beautiful? (I'm talking about the Java Edition v3 textures that recently popped up)